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Polyurethanes with Pendant Hydroxyl Groups: Synthesis and Characterization

✍ Scribed by Luc Ubaghs; Nicole Fricke; Helmut Keul; Hartwig Höcker

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
113 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Communication: Phenoxycarbonyloxymethyl ethylene carbonate 4 was synthesized from glycerol carbonate and phenyl chloroformate. Polyurethanes with pendant hydroxyl groups were obtained from polycondensation reactions of this AA* monomer with diamines. These polymers contain primary as well as secondary hydroxyl groups. The obtained polyurethanes are amorphous materials. The glass transition temperature decreases with increasing number of methylene groups between the urethane groups.

As the number of methylene groups increases between the urethane groups, the glass transition temperature of the polymer decreases.

magnified imageAs the number of methylene groups increases between the urethane groups, the glass transition temperature of the polymer decreases.

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